CLAS Physics Database

Measurement E151M3419

Experiment: EG4
Year: 2016

Experiment comment:

Final asymmetry results for the ep-> e pi+ (n) channel extracted from CLAS/EG4 data obtained using a longitudinally polarized beam and a longitudinally polarized NH3 target (CAA HS07-02).
Spokesperson: Xiaochao Zheng
Reaction: ep → π+n
Polarization: beam (longitudinal), target (longitudinal)
Quantity: ALU
εL: 0.9396
Q2: 0.4155 GeV2
W: 1295.0 GeV
Ebeam: 2.999 GeV
ε: 0.9435

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.05 66.0 -0.2868 0.2595
0.15 66.0 0.1626 0.2526
0.25 66.0 -0.627 0.2384
0.45 282.0 0.0765 0.2629
0.55 66.0 0.0778 0.2526
0.55 78.0 0.0209 0.2249
0.55 90.0 0.1672 0.2735
0.55 270.0 -0.2336 0.2158
0.55 282.0 -0.0452 0.2157
0.65 66.0 -0.0718 0.1956
0.65 78.0 -0.1976 0.1792
0.65 90.0 0.03 0.2073
0.65 102.0 0.2535 0.2456
0.65 258.0 -0.0682 0.2452
0.65 270.0 0.1677 0.2001
0.65 282.0 -0.0532 0.2286
0.65 294.0 0.184 0.186
0.65 306.0 0.3568 0.2338
0.75 66.0 -0.0482 0.1892
0.75 78.0 0.0647 0.1786
0.75 90.0 -0.0847 0.185
0.75 102.0 0.3103 0.1813
0.75 258.0 0.379 0.179
0.75 270.0 -0.021 0.1873
0.75 282.0 -0.1197 0.2154
0.75 294.0 -0.4073 0.1727
0.75 306.0 0.2719 0.1929
0.75 318.0 0.4294 0.2271
0.85 54.0 0.3077 0.2676
0.85 66.0 -0.0879 0.2113
0.85 78.0 0.0977 0.1801
0.85 90.0 0.1097 0.1846
0.85 102.0 -0.0203 0.2026
0.85 114.0 0.0806 0.2124
0.85 234.0 -0.1213 0.255
0.85 246.0 -0.1972 0.1961
0.85 258.0 -0.2045 0.1644
0.85 270.0 0.1602 0.2016
0.85 282.0 0.089 0.1874
0.85 294.0 0.2465 0.2052
0.85 306.0 0.3176 0.191
0.85 318.0 -0.2922 0.214
0.85 330.0 0.1393 0.2573
0.95 54.0 0.0916 0.2559
0.95 66.0 -0.4863 0.2296
0.95 78.0 0.1677 0.2611
0.95 90.0 0.0785 0.2389
0.95 102.0 -0.4081 0.2311
0.95 114.0 -0.0941 0.2639
0.95 234.0 -0.2468 0.2436
0.95 246.0 -0.1067 0.2937
0.95 258.0 -0.1142 0.2607
0.95 270.0 0.0412 0.2051
0.95 282.0 0.297 0.222
0.95 294.0 -0.0051 0.2354
0.95 306.0 0.0637 0.2563
0.95 318.0 0.1779 0.2723